| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 10 |
0.8%
|
| -1 | Don't know | 33 |
2.8%
|
| 1 | A great deal | 26 |
2.2%
|
| 2 | Quite a lot | 239 |
19.9%
|
| 3 | Not very much | 504 |
42%
|
| 4 | None at all | 388 |
32.3%
|